Patents by Inventor Long Zhijun

Long Zhijun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Writing instrument
    Patent number: D665025
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: August 7, 2012
    Assignee: Sanford, L.P.
    Inventors: Amy Li, James Bergman, Michael Albertini, Long Zhijun, Luo Qiang